EP2185312A1 - Drilling tool for machine tools and method for the production thereof - Google Patents
Drilling tool for machine tools and method for the production thereofInfo
- Publication number
- EP2185312A1 EP2185312A1 EP08786556A EP08786556A EP2185312A1 EP 2185312 A1 EP2185312 A1 EP 2185312A1 EP 08786556 A EP08786556 A EP 08786556A EP 08786556 A EP08786556 A EP 08786556A EP 2185312 A1 EP2185312 A1 EP 2185312A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting head
- drill body
- outlet openings
- grooves
- blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002826 coolant Substances 0.000 claims abstract description 28
- 238000003801 milling Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F7/00—Twisting wire; Twisting wire together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
- Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
- Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct
- Y10T408/455—Conducting channel extending to end of Tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
Definitions
- the invention relates to a drilling tool for machine tools having a drill body and a cutting head arranged on the front side of the drill body, the drill body having two chip conveying grooves bounded by ribs on their flanks, of which at least one helically curved, and wherein coolant channels are arranged in the ribs of the drill body are, of which at least one helically curved and at the cutting head end of the drill body has an outlet opening.
- the invention further relates to a method for producing a drilling tool consisting of a drill body with a front-side cutting head and an end shaft, in which a base material body is rotated to BohrSystemkontur to form a rotationally symmetric first blank, introduced into the first blank at least two spaced down hole bores be extending from eccentric to a central axis at the front side of the cutting-head-side blank end points in the direction of its shaft, and wherein the thus prepared second blank at axially spaced clamping points in a zone located between them a predetermined temperature is heated and helically twisted by a predetermined angle helically.
- the object of the invention is to improve the known drilling tool and the known method for its production in such a way that a simpler introduction of the coolant channels and an improved flow path at the exit point of the coolant channels is ensured.
- the solution according to the invention is based on the knowledge that, when a blank provided with deep-hole bores is twisted, a non-twisted region is produced outwardly from the clamping points.
- the chip conveying grooves are helically introduced into the drill body following the twisting, preferably milled, and the coiled milling process is continued into the untwisted cutting head end of the blank, the rectilinear channel end piece located there is milled so that a chamfer opening into the chip feed groove opens Outlet opening forms.
- the outlet openings are arranged within each one of the chip conveyor grooves and communicate via a rectilinear Kanalend published with one of the coolant channels.
- the outlet openings thereby receive an elongated oval or egg-shaped outline in the direction of the chip conveying grooves.
- the outlet openings form an edge-open channel running along the chip conveying grooves or that adjoin the outlet opening within the chip-conveying grooves in the direction of cutting edge-open channels.
- the chip conveying grooves can also be at least partially undulating along the cooling channels at the cutting head side.
- the drilling tool according to the invention is procedurally taken care that in the provided with the Tiefloch- bored wiring blank one of the number of deep holes corresponding number chip removal grooves is helically milled that the wired deep hole holes are within between adjacent flanks of Chip qualitynuten remaining ribs run and that the deep hole holes are milled on the cutting head side in a non-wired rectilinear region to form outlet openings opening into the chip conveying grooves. Subsequently, a receptacle for at least one cutting plate forming the cutting head or for a drill bit is introduced into the cutting head end of the fourth blank thus formed in the immediate vicinity of the outlet openings.
- the cutting head-side end of the fourth blank is shortened after the milling of the chip conveying grooves.
- grooves are arranged in the cutting head, which communicate with the grooves and / or coolant channels of the drill body.
- the chip removal can be improved by the
- the deep hole bores can be introduced either parallel or obliquely to each other with equal or different distances from a central axis in the respective blank.
- the deep-hole bores are expediently milled on the cutting head side in their non-twisted, rectilinear region to form outlet openings with an oval or egg-shaped outline. This results in an expedient in the course of Spaniernuten elongated outline of the outlet openings.
- An advantageous embodiment of the invention provides that the deep hole holes are milled on the cutting head side in its non-twisted rectilinear region to form aligned in the course of Chip busynuten open-edge grooves.
- the chip removal grooves are milled in the untwisted area of the deep hole bores with increasing spiral pitch or uncoiled, substantially parallel to the deep hole bores and the deep hole bores are thereby milled to form the edge open channels.
- additional edge-open grooves it is possible for additional edge-open grooves to be milled into the chip conveying grooves following the introduction of the chip conveying grooves and the outlet openings.
- Fig. 1 a and b is a side view and a plan view of a replaceable head drill
- FIGS. 2a to c show a diagram of the method sequence during the production of a wired drill body from a blank rotated on a drill body contour; 3 is an enlarged detail of the cutting head end of the coiled drill body blank;
- 4a and b is a perspective view and a side view of the cutting head side drill body blank with trough-shaped coolant channel outlet.
- the drilling tool shown in the drawing is intended for use in machine tools. It has a drill body 10, a cutter head 12 arranged on the front side of the drill body 10, designed as a drill bit, and a shank 16 which can be clamped in a tool holder, not shown, via a stop collar 14 to the drill body 10.
- the drill body 10 includes two at its flanks by ribs 18 limited chip removal grooves 20 which extend on the cutting head side into the limited by the cutting edges 22 clamping surfaces 24 within the drill bit 12 '.
- the chip conveying grooves 20 and the limiting ribs 18 are spirally wound over the entire length of the drill body.
- coolant channels 26 which are coiled within the majority of the ribs 18 with the same pitch and go to the cutting head side in a straight channel section 26 '.
- the channel sections 26 ' are cut there by the fluted chip conveying grooves 20 to form an oval outlet opening 28 pointing into the chip conveying groove.
- the outlet openings are positioned so that they are directed over the rake surface 24 on the associated cutting edges 22 of the drill bit 12 '.
- edge-open channels into the cutting head, which in the mounted state communicate with the outlet openings 28 in the drill body 10. This improves both cooling and chip removal. Chip delivery can also be improved by making the chip removal grooves steeper towards the shank end of the drill body. Accordingly, the coolant channels run out steeper towards the shank end of the drill body.
- the cutting head 12 is formed as a drill bit and the drill body has a coupling receptacle for a arranged on the drill bit coupling part.
- a cylindrical base material body is rotated in a lathe on BohrAvemkontur and provided with the shaft 16 and the cone transition 13 to the stop collar 14. Even in the lathe, a central bore forming the supply channel 32 is introduced from the shaft side into the region of the stop collar 14.
- two deep-hole bores 36 which are eccentric with respect to the central axis 34, are introduced from the cutting-head-side end side, which extend as far as the central supply channel 32 at the shank-side end of the drill body 10 (FIG. 2 a).
- the cutting head side end 12 of the drill body 10 is turned to drill body diameter and shortened the front side.
- second blank is clamped at the marked in Figure 2b by arrows 38, 40 and heated in the zone 41 located between them to a predetermined temperature and helically twisted by a predetermined angle wideniförmig.
- the deep-hole bores 36 are helically curved to form coolant channels 26 with a predetermined pitch.
- the deep-hole bores 36 remain undrilled to form the rectilinear channel sections 26 '(FIG. 2 b). The same applies to the shaft-free area outside the clamping point 40.
- the chip conveying grooves 20 are then spirally milled over the length of the drill body 10 such that the coiled coolant channels 26 come to rest in the ribs 18 delimiting the chip conveying grooves 20.
- the coiled milling process is also continued in the untwisted region 43 of the drill body, so that there the straight channel sections 26 'are milled to form the oval or egg-shaped outlet opening 28.
- the position of the outlet openings 28 can be determined by the relative assignment of the coiled Spanrion- groove 20 to the coolant channels 26 with their rectilinear channel sections 26 'so that they have in the desired direction within its chip feed groove (Fig. 2c and Fig. 3).
- the invention relates to a drilling tool for machine tools with a drill body 10 and a front side of the drill body 10 arranged cutting head 12.
- the drill body 10 has at least two limited on their flanks by ribs 18 Chip rationalnuten 20, of which at least one helically curved ,
- coolant channels 26 are arranged, which have an outlet opening 28 at the cutting head end of the drill body.
- a special feature is that the outlet openings 28 are arranged within each one of the chip conveyor grooves 20 and communicate via a rectilinear channel end piece 26 'with one of the coolant channels 26 arranged in the ribs 18.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08786556T PL2185312T3 (en) | 2007-09-06 | 2008-07-29 | Method for the manufacture of a drilling tool for machine tools |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007042279A DE102007042279A1 (en) | 2007-09-06 | 2007-09-06 | Drilling tool for machine tools and method for its production |
PCT/EP2008/059918 WO2009033878A1 (en) | 2007-09-06 | 2008-07-29 | Drilling tool for machine tools and method for the production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2185312A1 true EP2185312A1 (en) | 2010-05-19 |
EP2185312B1 EP2185312B1 (en) | 2015-09-09 |
Family
ID=39789701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08786556.4A Active EP2185312B1 (en) | 2007-09-06 | 2008-07-29 | Method for the manufacture of a drilling tool for machine tools |
Country Status (12)
Country | Link |
---|---|
US (1) | US8753046B2 (en) |
EP (1) | EP2185312B1 (en) |
JP (1) | JP5205458B2 (en) |
KR (1) | KR20100066489A (en) |
CN (1) | CN101795812B (en) |
BR (1) | BRPI0816451B1 (en) |
DE (1) | DE102007042279A1 (en) |
ES (1) | ES2552729T3 (en) |
IL (1) | IL203945A (en) |
PL (1) | PL2185312T3 (en) |
RU (1) | RU2463133C2 (en) |
WO (1) | WO2009033878A1 (en) |
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DE102007042280A1 (en) * | 2007-09-06 | 2009-03-12 | Komet Group Holding Gmbh | Drilling tool for machine tools and method for its production |
EP2298491B1 (en) * | 2009-09-22 | 2017-06-28 | Firma Gühring oHG | Tool with coolant channels |
GB2495646A (en) * | 2010-04-27 | 2013-04-17 | Malory Maltby | Fishing adapter with hook |
GB2479892B (en) * | 2010-04-27 | 2013-03-13 | Malory Maltby | Fishing adapter |
DE102011000352A1 (en) * | 2011-01-27 | 2012-02-16 | Arno Friedrichs | Dental drills and method for its production |
US8882412B2 (en) * | 2011-05-11 | 2014-11-11 | Kennametal Inc. | Rotary cutting tool having PCD cutting tip |
EP2596876A1 (en) * | 2011-11-24 | 2013-05-29 | Sandvik Intellectual Property AB | Round tool blank and method and device for making the same |
CN106862600A (en) * | 2012-06-01 | 2017-06-20 | 株式会社日研工作所 | The shank construction of end mill(ing) cutter |
CN102848160B (en) * | 2012-08-29 | 2014-08-13 | 哈尔滨汽轮机厂有限责任公司 | Wave blade-shaped end mill processing method |
KR101509713B1 (en) * | 2013-04-16 | 2015-04-06 | 주식회사 아이티엑스시큐리티 | Processing method for losing a password of an electronic equipment |
CN104107934A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Internally cooled drill with automatic chip removal function |
CN104107939A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Internally-cooled drill |
CN103567505A (en) * | 2013-07-16 | 2014-02-12 | 昆山巨德泰精密机械有限公司 | Drill bit with heat radiation holes on side face |
JP6635574B2 (en) * | 2013-07-29 | 2020-01-29 | 株式会社トクピ製作所 | Drill or gun drill |
JP2015047655A (en) * | 2013-08-30 | 2015-03-16 | 三菱マテリアル株式会社 | End mill having coolant hole |
CN103949700A (en) * | 2013-11-26 | 2014-07-30 | 李仕清 | Self-cooling center driller or self-cooling countersink driller |
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CN106216946B (en) * | 2016-07-22 | 2019-07-19 | 长沙天和钻具机械有限公司 | A kind of processing method of rotor reaming block |
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DE102017212054B4 (en) | 2017-07-13 | 2019-02-21 | Kennametal Inc. | Method for producing a cutting head and cutting head |
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CN108115368B (en) * | 2017-12-31 | 2018-11-13 | 江苏博创升降机械有限公司 | A kind of manufacturing method and metal twisting part of distortion part |
US11491594B2 (en) * | 2018-01-08 | 2022-11-08 | Ford Motor Company | Tooling assembly with internal coolant passages for machines |
JP6362803B1 (en) * | 2018-01-23 | 2018-07-25 | 株式会社松浦機械製作所 | Cutting tools |
US10773323B2 (en) | 2018-08-21 | 2020-09-15 | Ford Motor Company | Minimum quantity lubrication thread tap |
BE1026861B1 (en) * | 2018-12-12 | 2020-07-13 | Phoenix Contact Gmbh & Co | Cutting part and lathe |
US10814406B1 (en) | 2019-04-24 | 2020-10-27 | Raytheon Technologies Corporation | Internal cooling passages for rotating cutting tools |
CN112077370A (en) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | Indexable drill insert |
USD881957S1 (en) | 2019-06-27 | 2020-04-21 | Hongjia Wang | Twist drill |
JP7463674B2 (en) * | 2019-08-27 | 2024-04-09 | 三菱マテリアル株式会社 | End mill body of an end mill with indexable coolant holes and an end mill with indexable coolant holes |
US11590587B2 (en) | 2020-04-16 | 2023-02-28 | Allied Machine & Engineering Corporation | Drill systems with coolant delivery arrangements and methods |
CN113478189A (en) * | 2021-01-22 | 2021-10-08 | 长沙超金刚机械制造有限公司 | Processing method of reaming bit |
CN113020667B (en) * | 2021-02-07 | 2023-04-07 | 株洲钻石切削刀具股份有限公司 | Inner-cooling split type drilling tool |
CN113441761B (en) * | 2021-06-22 | 2023-04-18 | 哈尔滨瀚成科技有限公司 | Preparation method of inner-cooling drill bit, inner-cooling drill bit and heating device |
CN113814682A (en) * | 2021-09-06 | 2021-12-21 | 天津金键航天设备有限公司 | Preparation method of inner-cooling type rotary cutting tool, inner-cooling drill bit and inner-cooling milling cutter |
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-
2007
- 2007-09-06 DE DE102007042279A patent/DE102007042279A1/en not_active Withdrawn
-
2008
- 2008-07-29 JP JP2010523455A patent/JP5205458B2/en not_active Expired - Fee Related
- 2008-07-29 RU RU2010112991/02A patent/RU2463133C2/en not_active IP Right Cessation
- 2008-07-29 ES ES08786556.4T patent/ES2552729T3/en active Active
- 2008-07-29 CN CN2008801059734A patent/CN101795812B/en not_active Expired - Fee Related
- 2008-07-29 WO PCT/EP2008/059918 patent/WO2009033878A1/en active Application Filing
- 2008-07-29 KR KR1020107005071A patent/KR20100066489A/en not_active Application Discontinuation
- 2008-07-29 US US12/733,268 patent/US8753046B2/en active Active
- 2008-07-29 EP EP08786556.4A patent/EP2185312B1/en active Active
- 2008-07-29 PL PL08786556T patent/PL2185312T3/en unknown
- 2008-07-29 BR BRPI0816451A patent/BRPI0816451B1/en not_active IP Right Cessation
-
2010
- 2010-02-14 IL IL203945A patent/IL203945A/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2009033878A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2185312B1 (en) | 2015-09-09 |
RU2010112991A (en) | 2011-10-20 |
BRPI0816451B1 (en) | 2019-08-27 |
US8753046B2 (en) | 2014-06-17 |
BRPI0816451A2 (en) | 2015-03-03 |
WO2009033878A1 (en) | 2009-03-19 |
JP2010537838A (en) | 2010-12-09 |
PL2185312T3 (en) | 2016-02-29 |
IL203945A (en) | 2015-02-26 |
US20100150673A1 (en) | 2010-06-17 |
ES2552729T3 (en) | 2015-12-01 |
RU2463133C2 (en) | 2012-10-10 |
KR20100066489A (en) | 2010-06-17 |
JP5205458B2 (en) | 2013-06-05 |
CN101795812B (en) | 2013-03-13 |
DE102007042279A1 (en) | 2009-03-12 |
CN101795812A (en) | 2010-08-04 |
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